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Fr a700 instruction manual
1. FR-A700
INSTRUCTION MANUAL (BASIC)
FR-A720-0.4K to 90K
FR-A740-0.4K to 500K
INVERTER
IB(NA)-0600225ENG-C(0509)MEE Printed in Japan Specifications subject to change without notice.
FR-A700INVERTERINSTRUCTIONMANUAL(BASIC)
C
700HEAD OFFICE:MITSUBISHI DENKI BLDG MARUNOUCHI TOKYO 100-8310
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CONTENTS
PRODUCT CHECKING AND PARTS IDENTIFICATION.............................. 1
INSTALLATION AND WIRING...................................................................... 2
2.1 Peripheral devices.....................................................................................................3
2.2 Method of removal and reinstallation of the front cover............................................5
2.3 Installation of the inverter and instructions................................................................7
2.4 Wiring.........................................................................................................................8
2.5 Power-off and magnetic contactor (MC) .................................................................35
2.6 Precautions for use of the inverter ..........................................................................36
2.7 When using the high-duty brake resistor (FR-ABR) ...............................................37
DRIVE THE MOTOR.................................................................................... 38
3.1 Step of operation.....................................................................................................38
3.2 Operation panel (FR-DU07)....................................................................................39
3.3 Before operation......................................................................................................48
3.4 Start/stop from the operation panel (PU operation mode)......................................73
3.5 Make a start and stop with terminals (external operation)......................................78
3.6 Parameter List .........................................................................................................85
TROUBLESHOOTING............................................................................... 129
4.1 Reset method of protective function......................................................................129
4.2 List of alarm display...............................................................................................130
4.3 Causes and corrective actions..............................................................................131
4.4 Correspondences between digital and actual characters.....................................143
4.5 Check and clear of the alarm history.....................................................................144
4.6 Check first when you have troubles......................................................................146
PRECAUTIONS FOR MAINTENANCE AND INSPECTION ..................... 149
5.1 Inspection item ......................................................................................................149
SPECIFICATIONS ..................................................................................... 157
6.1 Rating ....................................................................................................................157
6.2 Common specifications.........................................................................................161
6.3 Outline dimension drawings..................................................................................162
6.4 Heatsink protrusion attachment procedure...........................................................175
Thank you for choosing this Mitsubishi Inverter.
This Instruction Manual (basic) is intended for users who "just want to run the inverter".
If you are going to utilize functions and performance, refer to the Instruction Manual (applied) [IB-0600226ENG].
The Instruction Manual (applied) is separately available from where you purchased the inverter or your Mitsubishi
sales representative.
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2. A-1
This instruction manual (basic) provides handling information and precautions for use of the equipment.
Please forward this instruction manual (basic) to the end user.
4. Additional Instructions
Also note the following points to prevent an accidental failure, injury, electric
shock, etc.
This section is specifically about safety matters
Do not attempt to install, operate, maintain or inspect the inverter until you
have read through this instruction manual (basic) and appended documents
carefully and can use the equipment correctly. Do not use the inverter until
you have a full knowledge of the equipment, safety information and
instructions. In this instruction manual (basic), the safety instruction levels are
classified into "WARNING" and "CAUTION".
Assumes that incorrect handling may cause hazardous
conditions, resulting in death or severe injury.
Assumes that incorrect handling may cause
hazardous conditions, resulting in medium or slight
injury, or may cause physical damage only.
Note that even the level may lead to a serious consequence
according to conditions. Please follow strictly the instructions of both levels
because they are important to personnel safety.
1. Electric Shock Prevention
• While power is on or when the inverter is running, do not open the front cover.
Otherwise you may get an electric shock.
• Do not run the inverter with the front cover or wiring cover removed.
Otherwise, you may access the exposed high-voltage terminals or the charging
part of the circuitry and get an electric shock.
• Even if power is off, do not remove the front cover except for wiring or periodic
inspection.You may access the charged inverter circuits and get an electric shock.
• Before starting wiring or inspection, check to make sure that the operation panel
indicator is off, wait for at least 10 minutes after the power supply has been
switched off, and check that there are no residual voltage using a tester or the
like. The capacitor is charged with high voltage for some time after power off and
it is dangerous.
• This inverter must be earthed (grounded). Earthing (grounding) must conform to
the requirements of national and local safety regulations and electrical codes.
(JIS, NEC section 250, IEC 536 class 1 and other applicable standards)
• Any person who is involved in the wiring or inspection of this equipment should
be fully competent to do the work.
• Always install the inverter before wiring. Otherwise, you may get an electric shock
or be injured.
• Perform setting dial and key operations with dry hands to prevent an electric
shock. Otherwise you may get an electric shock.
• Do not subject the cables to scratches, excessive stress, heavy loads or
pinching. Otherwise you may get an electric shock.
• Do not replace the cooling fan while power is on. It is dangerous to replace the
cooling fan while power is on.
• Do not touch the printed circuit board with wet hands. You may get an electric shock.
2. Fire Prevention
• Mount the inverter to non-combustible surface such as metal or concrete.
Mounting it to or near combustible material can cause a fire.
• If the inverter has become faulty, switch off the inverter power.
A continuous flow of large current could cause a fire.
• When using a brake resistor, make up a sequence that will turn off power when
an alarm signal is output.
Otherwise, the brake resistor may excessively overheat due to damage of the
brake transistor and such, causing a fire.
• Do not connect a resistor directly to the DC terminals P/+, N/−. This could cause
a fire.
3. Injury Prevention
• Apply only the voltage specified in the instruction manual to each terminal.
Otherwise, burst, damage, etc. may occur.
• Ensure that the cables are connected to the correct terminals. Otherwise, burst,
damage, etc. may occur.
• Always make sure that polarity is correct to prevent damage, etc. Otherwise,
burst, damage, etc. may occur.
• While power is on or for some time after power-off, do not touch the inverter as it
is hot and you may get burnt.
(1) Transportation and installation
• When carrying products, use correct lifting gear to prevent injury.
• Do not stack the inverter boxes higher than the number recommended.
• Ensure that installation position and material can withstand the weight of the
inverter. Install according to the information in the instruction manual.
• Do not install or operate the inverter if it is damaged or has parts missing. This can
result in breakdowns.
• When carrying the inverter, do not hold it by the front cover or setting dial; it may
fall off or fail.
• Do not stand or rest heavy objects on the product.
• Check the inverter mounting orientation is correct.
• Prevent other conductive bodies such as screws and metal fragments or other
flammable substance such as oil from entering the inverter.
• As the inverter is a precision instrument, do not drop or subject it to impact.
• Use the inverter under the following environmental conditions. Otherwise, the
inverter may be damaged.
WARNING
CAUTION
CAUTION
WARNING
CAUTION
CAUTION
CAUTION
Environment
Ambient temperature -10°C to +50°C (non-freezing)
Ambient humidity 90% RH or less (non-condensing)
Storage temperature -20°C to +65°C *1
Atmosphere Indoors (free from corrosive gas, flammable
gas, oil mist, dust and dirt)
Altitude, vibration
Maximum 1000m above sea level for standard
operation. 5.9m/s2 or less *2 (conforming to
JIS C 60068-2-6)
*1 Temperature applicable for a short time, e.g. in transit.
*2 2.9m/s2 or less for the 160K or more.
(2) Wiring
• Do not install a power factor correction capacitor or surge suppressor/radio
noise filter (capacitor type filter) on the inverter output side.
• The connection orientation of the output cables U, V, W to the motor will affect
the direction of rotation of the motor.
(3) Test operation and adjustment
• Before starting operation, confirm and adjust the parameters. A failure to do so
may cause some machines to make unexpected motions.
(4) Operation
• When you have chosen the retry function, stay away from the equipment as it
will restart suddenly after an alarm stop.
• The key is valid only when the appropriate function setting has been
made. Prepare an emergency stop switch separately.
• Make sure that the start signal is off before resetting the inverter alarm. A failure
to do so may restart the motor suddenly.
• The load used should be a three-phase induction motor only. Connection of any
other electrical equipment to the inverter output may damage the inverter as well as
equipment.
• Performing pre-excitation (LX signal and X13 signal) under torque control (real
sensorless vector control) may start the motor running at a low speed even
when the start command (STF or STR) is not input. The motor may run also at a
low speed when the speed limit value = 0 with a start command input. Perform
pre-excitation after making sure that there will be no problem in safety if the
motor runs.
• Do not modify the equipment.
• Do not perform parts removal which is not instructed in this manual. Doing so
may lead to fault or damage of the inverter.
• The electronic thermal relay function does not guarantee protection of the motor
from overheating.
• Do not use a magnetic contactor on the inverter input for frequent starting/
stopping of the inverter.
• Use a noise filter to reduce the effect of electromagnetic interference. Otherwise
nearby electronic equipment may be affected.
• Take measures to suppress harmonics. Otherwise power supply harmonics from
the inverter may heat/damage the power factor correction capacitor and
generator.
• When a 400V class motor is inverter-driven, please use an insulation-enhanced
motor or measures taken to suppress surge voltages. Surge voltages
attributable to the wiring constants may occur at the motor terminals,
deteriorating the insulation of the motor.
• When parameter clear or all clear is performed, reset the required parameters
before starting operations. Each parameter returns to the initial value.
• The inverter can be easily set for high-speed operation. Before changing its
setting, fully examine the performances of the motor and machine.
• In addition to the inverter's holding function, install a holding device to ensure
safety.
• Before running an inverter which had been stored for a long period, always
perform inspection and test operation.
• For prevention of damage due to static electricity, touch nearby metal before
touching this product to eliminate static electricity from your body.
(5) Emergency stop
• Provide a safety backup such as an emergency brake which will prevent the
machine and equipment from hazardous conditions if the inverter fails.
• When the breaker on the inverter input side trips, check for the wiring fault (short
circuit), damage to internal parts of the inverter, etc. Identify the cause of the trip,
then remove the cause and power on the breaker.
• When the protective function is activated, take the corresponding corrective
action, then reset the inverter, and resume operation.
(6) Maintenance, inspection and parts replacement
• Do not carry out a megger (insulation resistance) test on the control circuit of the
inverter.
(7) Disposing of the inverter
• Treat as industrial waste.
General instructions
Many of the diagrams and drawings in this instruction manual (basic) show the
inverter without a cover, or partially open. Never run the inverter in this status.
Always replace the cover and follow this instruction manual (basic) when
operating the inverter.
CAUTION
CAUTION
WARNING
CAUTION
CAUTION
CAUTION
CAUTION
3. I
1 PRODUCT CHECKING AND PARTS IDENTIFICATION 1
2 INSTALLATION AND WIRING 2
2.1 Peripheral devices .................................................................................................3
2.2 Method of removal and reinstallation of the front cover .........................................5
2.3 Installation of the inverter and instructions.............................................................7
2.4 Wiring.....................................................................................................................8
2.4.1 Terminal connection diagram .................................................................................................... 8
2.4.2 EMC filter................................................................................................................................... 9
2.4.3 Specification of main circuit terminal ....................................................................................... 10
2.4.4 Terminal arrangement of the main circuit terminal, power supply and the motor wiring. ........ 10
2.4.5 Control circuit terminals ........................................................................................................... 20
2.4.6 Changing the control logic ....................................................................................................... 23
2.4.7 Wiring of control circuit ............................................................................................................ 25
2.4.8 When connecting the operation panel using a connection cable ............................................ 26
2.4.9 RS-485 terminal block ............................................................................................................. 26
2.4.10 Communication operation........................................................................................................ 27
2.4.11 USB connector ........................................................................................................................ 27
2.4.12 Connection of motor with encoder(vector control)................................................................... 28
2.5 Power-off and magnetic contactor (MC) ..............................................................35
2.6 Precautions for use of the inverter .......................................................................36
2.7 When using the high-duty brake resistor (FR-ABR).............................................37
3 DRIVE THE MOTOR 38
3.1 Step of operation..................................................................................................38
3.2 Operation panel (FR-DU07).................................................................................39
3.2.1 Parts of the operation panel (FR-DU07).................................................................................. 39
3.2.2 Basic operation (factory setting) .............................................................................................. 40
3.2.3 Operation lock (Press [MODE] for an extended time (2s)) ...................................................... 41
3.2.4 Monitoring of output current and output voltage ...................................................................... 42
3.2.5 First priority monitor................................................................................................................. 42
3.2.6 Setting dial push ...................................................................................................................... 42
3.2.7 Change the parameter setting value ....................................................................................... 43
3.2.8 Parameter clear, all parameter clear ....................................................................................... 44
3.2.9 Parameter copy and parameter verification............................................................................. 45
3.3 Before operation ..................................................................................................48
3.3.1 Simple mode parameter list..................................................................................................... 48
3.3.2 Overheat protection of the motor by the inverter (Pr. 9) .......................................................... 49
3.3.3 When the rated motor frequency is 50Hz (Pr. 3) .................................................................... 50
3.3.4 Increase the starting torque (Pr. 0) ......................................................................................... 51
3.3.5 Limit the maximum and minimum output frequency (Pr. 1, Pr. 2) ........................................... 52
3.3.6 Change acceleration and deceleration time (Pr. 7, Pr. 8)........................................................ 53
3.3.7 Selection of the start command and frequency command locations (Pr. 79) .......................... 54
3.3.8 Large starting torque and low speed torque are necessary (advanced magnetic
flux vector control, real sensorless vector control) (Pr. 71, Pr. 80, Pr. 81, Pr. 800) ............... 55
— CONTENTS —
4. II
CONTENTS
3.3.9 Higher accuracy operation using a motor with encoder (Vector control)
(Pr.71, Pr.80, Pr.81, Pr.359, Pr.369, Pr.800) .......................................................................... 58
3.3.10 To exhibit the best performance of the motor performance (offline auto tuning)
(Pr. 71, Pr. 83, Pr. 84, Pr. 96) .............................................................................................. 63
3.3.11 High accuracy operation unaffected by the motor temperature
(online auto tuning) (Pr. 95) ................................................................................................ 67
3.3.12 To perform high accuracy / fast response operation (gain adjustment of real
sensorless vector control) (Pr. 818 to Pr. 821, Pr. 880)
............................................................................................................................................... 68
3.4 Start/stop from the operation panel (PU operation mode) ...................................73
3.4.1 Set the set frequency to operate (example: performing operation at 30Hz)............................ 73
3.4.2 Use the setting dial like a potentiometer to perform operation. ............................................... 74
3.4.3 Use switches to give a start command and a frequency command (multi-speed setting)....... 75
3.4.4 Perform frequency setting by analog (voltage input) ............................................................... 76
3.4.5 Perform frequency setting by analog (current input) ............................................................... 77
3.5 Make a start and stop with terminals (external operation) ...................................78
3.5.1 Use the set frequency set by the operation panel (Pr. 79 = 3) ................................................ 78
3.5.2 Use switches to give a start command and a frequency command
(multi-speed setting) (Pr. 4 to Pr. 6) ........................................................................................ 79
3.5.3 Perform frequency setting by analog (voltage input) ............................................................... 81
3.5.4 Change the frequency (60Hz) of the maximum value of potentiometer
(at 5V, initial value) .................................................................................................................. 82
3.5.5 Perform frequency setting by analog (current input) ............................................................... 83
3.5.6 Change the frequency (60Hz) of the maximum value of potentiometer
(at 20mA, initial value)............................................................................................................. 84
3.6 Parameter List......................................................................................................85
3.6.1 List of parameters classified by purpose of use ...................................................................... 85
3.6.2 Parameter list .......................................................................................................................... 88
4 TROUBLESHOOTING 129
4.1 Reset method of protective function ..................................................................129
4.2 List of alarm display ...........................................................................................130
4.3 Causes and corrective actions...........................................................................131
4.4 Correspondences between digital and actual characters ..................................143
4.5 Check and clear of the alarm history .................................................................144
4.6 Check first when you have troubles ...................................................................146
4.6.1 Motor does not rotate as commanded................................................................................... 146
4.6.2 Motor generates abnormal noise........................................................................................... 146
4.6.3 Motor generates heat abnormally.......................................................................................... 146
4.6.4 Motor rotates in opposite direction ........................................................................................ 147
4.6.5 Speed greatly differs from the setting.................................................................................... 147
4.6.6 Acceleration/deceleration is not smooth................................................................................ 147
4.6.7 Motor current is large............................................................................................................. 147
4.6.8 Speed does not increase....................................................................................................... 147
4.6.9 Speed varies during operation............................................................................................... 147
4.6.10 Operation mode is not changed properly .............................................................................. 148
4.6.11 Operation panel (FR-DU07) display is not operating............................................................. 148
4.6.12 POWER lamp is not lit........................................................................................................... 148
4.6.13 Parameter write cannot be performed ................................................................................... 148
5. III
5 PRECAUTIONS FOR MAINTENANCE AND INSPECTION 149
5.1 Inspection item...................................................................................................149
5.1.1 Daily inspection ..................................................................................................................... 149
5.1.2 Periodic inspection ................................................................................................................ 149
5.1.3 Daily and periodic inspection................................................................................................. 150
5.1.4 Display of the life of the inverter parts ................................................................................... 151
5.1.5 Cleaning ................................................................................................................................ 152
5.1.6 Replacement of parts ............................................................................................................ 152
5.1.7 Inverter replacement.............................................................................................................. 156
6 SPECIFICATIONS 157
6.1 Rating.................................................................................................................157
6.1.1 Inverter rating ........................................................................................................................ 157
6.1.2 Motor rating ........................................................................................................................... 159
6.2 Common specifications......................................................................................161
6.3 Outline dimension drawings...............................................................................162
6.3.1 Inverter outline dimension drawings ...................................................................................... 162
6.3.2 Dedicated motor outline dimension drawings........................................................................ 170
6.4 Heatsink protrusion attachment procedure ........................................................175
6.4.1 When using a heatsink protrusion attachment (FR-A7CN) ................................................... 175
6.4.2 Protrusion of heatsink of the FR-A740-160K or more ........................................................... 175
APPENDICES 178
Appendix 1For customers who have replaced the older model with this
inverter...................................................................................................... 178
Appendix 1-1Replacement of the FR-A500 series ............................................................................. 178
Appendix 1-2Replacement of the FR-A200 <EXCELENT> series .................................................... 179
Appendix 2 Instructions for UL and cUL...................................................................... 180
Appendix 3 Instructions for Compliance with the European Directives....................... 182
<Abbreviations>
DU: Operation panel (FR-DU07)
PU: Operation panel(FR-DU07) and parameter unit (FR-PU04, FR-PU07)
Inverter: Mitsubishi inverter FR-A700 series
FR-A700: Mitsubishi inverter FR-A700 series
Pr.: Parameter Number
PU operation: Operation using the PU (FR-DU07/FR-PU04/FR-PU07).
External operation: Operation using the control circuit signals
Combined operation: Combined operation using the PU (FR-DU07/FR-PU04/FR-PU07) and external operation
Standard motor: SF-JR
Constant-torque motor: SF-HRCA
Vector dedicated motor: SF-V5RU
<Trademarks>
LONWORKS®
is registered trademarks of Echelon Corporation in the U.S.A. and other countries.
DeviceNet is a registered trademark of ODVA (Open DeviceNet Vender Association, Inc.).
Company and product names herein are the trademarks and registered trademarks of their respective owners.
6. 1
1
PRODUCTCHECKINGANDPARTSIDENTIFICATION
1 PRODUCT CHECKING AND PARTS IDENTIFICATION
Unpack the inverter and check the capacity plate on the front cover and the rating plate on the inverter side face to
ensure that the product agrees with your order and the inverter is intact.
REMARKS
For removal and reinstallation of covers, refer to page 5.
Harmonic suppression guideline
All models of general-purpose inverters used by specific consumers are covered by "Harmonic suppression guideline for consumers who
receive high voltage or special high voltage". (For further details, refer to Instruction Manual (applied).)
Operation panel (FR-DU07)
Front cover
EMC filter ON/OFF connector
Control circuit
terminal block
AU/PTC switchover switch
Main circuit
terminal block
Power lamp
Lit when the control circuit
(R1/L11, S1/L21) is supplied
with power.
Cooling fan
PU connectorRS-485 terminals
Connector for plug-in option connection
(Refer to the instruction manual of options.)
Alarm lamp
Lit when the inverter is
in the alarm status
(major fault).
Capacity plate
Inverter type Serial number
Capacity plate
Rating plate
Combed shaped
wiring cover
USB connector
Voltage/current input switch
Charge lamp
Lit when power is
supplied to the main
circuit
K3.7
Indicate inverter
capacity (kW)
FR-A720-3.7K
FR - -A720
Symbol Voltage Class
A720 Three-phase 200V class
• Inverter Type
Rating plate
Inverter type
Input rating
Output rating
Serial number
FR-A720-3.7K
Applied motor
capacity
A740 Three-phase 400V class
(Refer to page 22)
(Refer to page 39)
(Refer to page 9)
(Refer to page 10)
(Refer to page 153)
(Refer to page 26)
(Refer to page 20)
(Refer to the Instruction Manual (applied).)
• Accessory
· Fan cover fixing screws (22K or less)(Refer to page 182 )
These screws are necessary for compliance with the
European Directive
Capacity Screw Size (mm) Number
2
0
0
V
1.5K to 3.7K M3 × 35 1
5.5K to 11K M4 × 40 2
15K to 22K M4 × 50 1
4
0
0
V
2.2K, 3.7K M3 × 35 1
5.5K to 15K M4 × 40 2
18.5K, 22K M4 × 50 1
(Refer to page 14)
(Refer to page 10)
(Refer to page 5)
(Refer to page 27)
(Refer to page 8)
· DC reactor supplied (75K or more)
· Eyebolt for hanging the inverter (30K to
280K)
M8 × two pieces
7. 2
2 INSTALLATION AND WIRING
CAUTION
· Do not install a power factor correction capacitor, surge suppressor or radio noise filter on the inverter output side. This will cause the
inverter to trip or the capacitor, and surge suppressor to be damaged. If any of the above devices are connected, immediately remove them.
· Electromagnetic wave interference
The input/output (main circuit) of the inverter includes high frequency components, which may interfere with the communication
devices (such as AM radios) used near the inverter. In this case, set the EMC filter valid to minimize interference.
(Refer to Instruction Manual (applied).)
· Refer to the instruction manual of each option and peripheral devices for details of peripheral devices.
Noise filter
(FR-BSF01, FR-BLF)
Motor
Devices connected to the outputP/+
P/+
PR
PR
AC reactor
(FR-HAL)
DC reactor
(FR-HEL)
Install a noise filter to reduce
the electromagnetic noise
generated from the inverter.
Effective in the range from
about 1MHz to 10MHz. A wire
should be wound four turns at
a maximum.
Power supply harmonics can
be greatly suppressed.
Install this as required.
Great braking capability is
obtained.
Install this as required.
The regenerative braking
capability of the inverter can
be exhibited fully.
Install this as required.
Three-phase AC power supply
Use within the permissible power supply
specifications of the inverter.
USB connector
A personal computer and an inverter can
be connected with a USB (Ver1. 1) cable.
Moulded case circuit breaker (MCCB) or
earth leakage current breaker (ELB),
fuse
The breaker must be selected carefully
since an in-rush current flows in the inverter
at power on.
Magnetic contactor (MC)
Install the magnetic contactor to ensure
safety. Do not use this magnetic contactor
to start and stop the inverter. Doing so will
cause the inverter life to be shorten.
High-duty brake resistor
(FR-ABR*3)
Braking capability of the
inverter built-in brake can be
improved. Remove the jumper
across terminal PR-PX when
connecting the high-duty brake
resistor. (7.5K or less)
Reactor (FR-HAL, FR-HEL option)
Reactors (option) must be used when power
harmonics measures are taken, the power factor is
to be improved or the inverter is installed near a
large power supply system (1000kVA or more).
The inverter may be damaged if you do not use
reactors. Select the reactor according to the model.
Do not install a power factor correction capacitor,
surge suppressor or radio noise filter on the output
side of the inverter. When installing a moulded case
circuit breaker on the output side of the inverter,
contact each manufacturer for selection of the
moulded case circuit breaker.
*3 Compatible with the 22K or less.
R/L1 S/L2 T/L3
P1P/+ N/-P/+ U W
P/+
PR
V
High power factor converter
(FR-HC*1, MT-HC*2)
Power regeneration
common converter (FR-CV*1)
Power regeneration
converter (MT-RC*2)
Resistor unit
(FR-BR*1, MT-BR5*2)
Brake unit
(FR-BU*1, MT-BU5*2)
to the 55K or less.
Noise filter
(FR-BLF)
Earth
(Ground)
Earth (Ground)
Earth (Ground)
To prevent an electric shock, always earth (ground) the
motor and inverter. For reduction of induction noise
from the power line of the inverter, it is recommended
to wire the earth (ground) cable by returning it to the
earth (ground) terminal of the inverter.
Remove the jumpers across terminals P/+ - P1
to connect the DC reactor
The 55K or less has
a built-in common
mode core.
For the 75K or more, a
DC reactor is supplied.
Always install the reactor.
*1 Compatible with the 55K or less.
*2 Compatible with the 75K or more.
(Refer to page 157)
(Refer to page 3)
(Refer to page 27)
(Refer to page 35)
(Refer to Instruction Manual (applied)) )
Inverter (FR-A700)
The life of the inverter is influenced by
ambient temperature. The ambient
temperature should be as low as possible
within the permissible range. This must be
noted especially when the inverter is
installed in an enclosure. (Refer to page 7)
Wrong wiring might lead to damage of the
inverter. The control signal lines must be
kept fully away from the main circuit to
protect them from noise.(Refer to page 8)
Refer to page 9 for the built-in EMC filter.
8. 3
Peripheral devices
2INSTALLATIONANDWIRING
2.1 Peripheral devices
Check the motor capacity of the inverter you purchased. Appropriate peripheral devices must be selected according to
the capacity. Refer to the following list and prepare appropriate peripheral devices:
200V class
Motor Output
(kW)*1
Applicable Inverter Type
Breaker Selection*2,4 Input Side Magnetic Contactor*3
Reactor connection Reactor connection
without with without with
0.4 FR-A720-0.4K 30AF 5A 30AF 5A S-N10 S-N10
0.75 FR-A720-0.75K 30AF 10A 30AF 10A S-N10 S-N10
1.5 FR-A720-1.5K 30AF 15A 30AF 15A S-N10 S-N10
2.2 FR-A720-2.2K 30AF 20A 30AF 15A S-N10 S-N10
3.7 FR-A720-3.7K 30AF 30A 30AF 30A S-N20, N21 S-N10
5.5 FR-A720-5.5K 50AF 50A 50AF 40A S-N25 S-N20, N21
7.5 FR-A720-7.5K 100AF 60A 50AF 50A S-N25 S-N25
11 FR-A720-11K 100AF 75A 100AF 75A S-N35 S-N35
15 FR-A720-15K 225AF 125A 100AF 100A S-N50 S-N50
18.5 FR-A720-18.5K 225AF 150A 225AF 125A S-N65 S-N50
22 FR-A720-22K 225AF 175A 225AF 150A S-N80 S-N65
30 FR-A720-30K 225AF 225A 225AF 175A S-N95 S-N80
37 FR-A720-37K 400AF 250A 225AF 225A S-N150 S-N125
45 FR-A720-45K 400AF 300A 400AF 300A S-N180 S-N150
55 FR-A720-55K 400AF 400A 400AF 350A S-N220 S-N180
75 FR-A720-75K 400AF 400A S-N300
90 FR-A720-90K 400AF 400A S-N300
*1 Selections for use of the Mitsubishi 4-pole standard motor with power supply voltage of 200VAC 50Hz.
*2 Select the MCCB according to the inverter power supply capacity.
Install one MCCB per inverter.
For installations in the United States or Canada, use the fuse certified by the UL and cUL.
(Refer to page 180.)
*3 Magnetic contactor is selected based on the AC-1 class. The electrical durability of magnetic contactor is 500,000 times. When the magnetic
contactor is used for emergency stop during motor driving, the electrical durability is 25 times.
When using the MC for emergency stop during motor driving or using on the motor side during commercial-power supply operation, select the MC
with class AC-3 rated current for the motor rated current.
*4 When the breaker on the inverter primary side trips, check for the wiring fault (short circuit), damage to internal parts of the inverter, etc. Identify
the cause of the trip, then remove the cause and power on the breaker.
MCCB INV
MCCB INV
IM
IM
9. 4
Peripheral devices
400V class
Motor Output
(kW)*1
Applicable Inverter Type
Breaker Selection*2,4 Input Side Magnetic Contactor*3
Reactor connection Reactor connection
without with without with
0.4 FR-A740-0.4K 30AF 5A 30AF 5A S-N10 S-N10
0.75 FR-A740-0.75K 30AF 5A 30AF 5A S-N10 S-N10
1.5 FR-A740-1.5K 30AF 10A 30AF 10A S-N10 S-N10
2.2 FR-A740-2.2K 30AF 10A 30AF 10A S-N10 S-N10
3.7 FR-A740-3.7K 30AF 20A 30AF 15A S-N10 S-N10
5.5 FR-A740-5.5K 30AF 30A 30AF 20A S-N20 S-N11, N12
7.5 FR-A740-7.5K 30AF 30A 30AF 30A S-N20 S-N20
11 FR-A740-11K 50AF 50A 50AF 40A S-N20 S-N20
15 FR-A740-15K 100AF 60A 50AF 50A S-N25 S-N20
18.5 FR-A740-18.5K 100AF 75A 100AF 60A S-N25 S-N25
22 FR-A740-22K 100AF 100A 100AF 75A S-N35 S-N25
30 FR-A740-30K 225AF 125A 100AF 100A S-N50 S-N50
37 FR-A740-37K 225AF 150A 225AF 125A S-N65 S-N50
45 FR-A740-45K 225AF 175A 225AF 150A S-N80 S-N65
55 FR-A740-55K 225AF 200A 225AF 175A S-N80 S-N80
75 FR-A740-75K 225AF 225A S-N95
90 FR-A740-90K 225AF 225A S-N150
110 FR-A740-110K 225AF 225A S-N180
132 FR-A740-132K 400AF 400A S-N220
150 FR-A740-160K 400AF 400A S-N300
160 FR-A740-160K 400AF 400A S-N300
185 FR-A740-185K 400AF 400A S-N300
220 FR-A740-220K 600AF 500A S-N400
250 FR-A740-250K 600AF 600A S-N600
280 FR-A740-280K 600AF 600A S-N600
315 FR-A740-315K 800AF 700A S-N600
355 FR-A740-355K 800AF 800A S-N600
400 FR-A740-400K 1000AF 900A S-N800
450 FR-A740-450K 1000AF 1000A
1000A
Rated product
500 FR-A740-500K 1200AF 1200A
1000A
Rated product
*1 Selections for use of the Mitsubishi 4-pole standard motor with power supply voltage of 400VAC 50Hz.
*2 Select the MCCB according to the inverter power supply capacity.
Install one MCCB per inverter.
For installations in the United States or Canada, use the fuse certified by the UL and cUL.
(Refer to page 180.)
*3 Magnetic contactor is selected based on the AC-1 class. The electrical durability of magnetic contactor is 500,000 times. When the magnetic
contactor is used for emergency stop during motor driving, the electrical durability is 25 times.
When using the MC for emergency stop during motor driving or using on the motor side during commercial-power supply operation, select the MC
with class AC-3 rated current for the motor rated current.
*4 When the breaker on the inverter primary side trips, check for the wiring fault (short circuit), damage to internal parts of the inverter, etc. Identify
the cause of the trip, then remove the cause and power on the breaker.
MCCB INV
MCCB INV
IM
IM
10. 5
Method of removal and reinstallation of the
front cover
2INSTALLATIONANDWIRING
2.2 Method of removal and reinstallation of the front cover
•Removal of the operation panel
1) Loosen the two screws on the operation panel.
(These screws cannot be removed.)
2) Push the left and right hooks of the operation panel
and pull the operation panel toward you to remove.
When reinstalling the operation panel, insert it straight to reinstall securely and tighten the fixed screws of the
operation panel.
FR-A720-0.4K to 22K, FR-A740-0.4K to 22K
•Removal
•Reinstallation
Installation hook
Front cover Front cover
1) Loosen the installation screws of the
front cover.
2) Pull the front cover toward you to remove by pushing an
installation hook using left fixed hooks as supports.
Front cover Front cover
Front cover
1) Insert the two fixed hooks on the left side of
the front cover into the sockets of the
inverter.
2) Using the fixed hooks as supports,
securely press the front cover
against the inverter.
(Although installation can be done
with the operation panel mounted,
make sure that a connector is
securely fixed.)
3) Tighten the installation
screws and fix the front
cover.
11. 6
Method of removal and reinstallation of the
front cover
FR-A720-30K or more, FR-A740-30K or more
•Removal
•Reinstallation
CAUTION
1. Fully make sure that the front cover has been reinstalled securely. Always tighten the installation screws of the front cover.
2. The same serial number is printed on the capacity plate of the front cover and the rating plate of the inverter. Before reinstalling the front
cover, check the serial numbers to ensure that the cover removed is reinstalled to the inverter from where it was removed.
Front cover 2
Front cover 1
Installation hook
1) Remove installation screws on
the front cover 1 to remove the
front cover 1.
2) Loosen the installation
screws of the front cover 2.
3) Pull the front cover 2 toward you to
remove by pushing an installation
hook on the right side using left
fixed hooks as supports.
Front cover 2 Front cover 2
Front cover 2
Front cover 1
1) Insert the two fixed hooks on the left side of the
front cover 2 into the sockets of the inverter.
2) Using the fixed hooks as supports, securely
press the front cover 2 against the inverter.
(Although installation can be done with the
operation panel mounted, make sure that a
connector is securely fixed.)
3) Fix the front cover 2 with the
installation screws.
4) Fix the front cover 1 with the
installation screws.
REMARKS
⋅ For the FR-A720-55Kand the 160K or more, the front cover 1 is separated into two parts.
12. 7
Installation of the inverter and instructions
2INSTALLATIONANDWIRING
2.3 Installation of the inverter and instructions
• Installation of the Inverter
• Install the inverter under the following conditions.
• The inverter consists of precision mechanical and electronic parts. Never install or handle it in any of the following
conditions as doing so could cause an operation fault or failure.
Installation on the enclosure
0.4K to 22K 30K or more
REMARKS
For replacing the cooling fan of the FR-A740-160K or more, 30cm of space is necessary in front of the inverter.
Refer to page 153 for fan replacement.
CAUTION
⋅ When encasing multiple inverters, install them in
parallel as a cooling measure.
⋅ Install the inverter vertically.
* Refer to the clearances below.
Vertical
*Fix six positions for the FR-A740-
160K to 355K and fix eight positions
for the FR-A740-400K to 500K.
Ambient temperature and humidity
Measurement
position
Measurement
position
Inverter5cm 5cm
5cm
Temperature: -10°C to 50°C
Humidity: 90% RH maximum
Leave enough clearances
and take cooling measures.
Clearances (Side)
5cm or
more Inverter
Clearances (Front)
55K or less 75K or more
20cm or more
20cm or more
10cm or
more
10cm or
more
10cm or more
10cm or more
5cm or
more
5cm or
more
*1cm or more for 3.7K or less
**
Direct sunlight High temperature,
high humidity
Horizontal placement
Mounting to
combustible material
Oil mist, flammable
gas, corrosive gas,
fluff, dust, etc.
Transportation by
holding the front cover
Vertical mounting
(When installing two or
more inverters, install
them in parallel.)
Vibration(5.9m/s2 or more*)
* 2.9m/s2 or more for the
160K or more
13. 8
Wiring
2.4 Wiring
2.4.1 Terminal connection diagram
CAUTION
· To prevent a malfunction due to noise, keep the signal cables more than 10cm away from the power cables.
· After wiring, wire offcuts must not be left in the inverter.
Wire offcuts can cause an alarm, failure or malfunction. Always keep the inverter clean.
When drilling mounting holes in an enclosure etc., take care not to allow chips and other foreign matter to enter the inverter.
*5. Terminal input specifications
can be changed by analog
input specifications
switchover (Pr. 73, Pr. 267).
Note that the current at
terminal 2 and 4 is always 4
to 20mA when the
voltage/current input switch is
set to ON. (A voltage/current
input switch is provided for
the 5.5K or more.)
R/L1
S/L2
T/L3
R1/L11
S1/L21
PC
10E(+10V)
10(+5V)
2
(Analog common)
2
3
1
1
4
FM
SD
Jumper
C1
B1
A1
U
V
W
P1
+ -
AM
5
0 to ±10VDC
*1
*9
0 to 5VDC
0 to 10VDC
MC
Main circuit
Control circuit
C2
B2
A2
IM
4 to 20mADC
AU
PTC
TXD+
TXD-
RXD+
RXD-
SG
GND
SINK
SOURCE
*4
*3
*5
*11
STF
STR
STOP
RH
RM
RL
JOG
RT
MRS
RES
AU
CS
SD
RUN
SU
IPF
OL
FU
SE
(+)
(-)
5
ON
OFF
VCC
(+)
(-)
5V
*11. FM terminal can
be used for pulse
train output of open
collector output
using Pr.291.
*2 Earth (Ground)
*9.The FR-A720-0.4K and 0.75K
are not provided with the EMC
filter ON/OFF connector. (Always on)
R
R
PX PR N/-P/+
*8 *8. Brake resistor (FR-ABR)
Remove the jumper across terminal PR-PX
when connecting a brake resistor.
(0.4K to 7.5K)
Terminal PR is provided for the 0.4K to 22K.
Install a thermal relay to prevent an overheat
and burnout of the brake resistor.
*3. JOG terminal can be used
as pulse train input terminal.
Use Pr.291 to select
JOG/pulse.
Main circuit terminal
Control circuit terminal
Sink logic
Three-phase AC
power supply
MCCB
Jumper
Earth
(Ground)
EMC filter
ON/OFF
connecter
Earth
(Ground)
24VDC power supply
(Common for external power supply transistor)
selected
selected0 to ±5VDC *5
4 to 20mADC
0 to 5VDC
0 to 10VDC
selected *5
Option connector 1
Option connector 2
Option connector 3
Connector
for plug-in option
connection
Frequency setting signal (Analog)
Frequency setting
potentiometer
1/2W1kΩ
*6
Control input signals (No voltage input allowed)
Forward
rotation
start
Reverse
rotation
start
Start self-
holding selection
Terminal functions vary with
the input terminal
assignment (Pr. 178 to Pr. 189)
Middle
speed
High speed
Low speed
Multi-speed
selection
Jog mode
Second function selection
Output stop
Reset
Terminal 4 input selection
(Current input selection)
Selection of automatic restart
after instantaneous
power failure
Contact input common
USB
connector
PU
connector
Terminating
resistor
Data reception
Data transmission
RS-485 terminals
(+)
(-)
(0 to 10VDC)
Analog signal output
Moving-coil type
1mA full-scale
(Frequency meter, etc.)
Indicator
Calibration
resistor *10
Open collector output common
Sink/source common
Frequency detection
Running
Up to frequency
Instantaneous
power failure
Overload
Terminal functions
vary with the output
terminal assignment
(Pr. 190 to Pr. 194)
Open collector output
(Permissible load
current 100mA)
Relay output 2
Relay output 1
(Alarm output)
Terminal functions
vary with the output
terminal assignment
(Pr. 195, Pr. 196)
Relay output
Motor
*4. AU terminal can be
used as PTC input
terminal.
*2. To supply power to the
control circuit separately,
remove the jumper across
R1/L11 and S1/L21.
*10.It is not necessary
when calibrating the
indicator from the
operation panel.
*6. It is recommended to use 2W1kΩ
when the frequency setting signal
is changed frequently.
Jumper
(Initial value)
(Initial value)
(Initial value)
ON
4 2
OFF
Voltage/current
input switch
*5
Auxiliary
input
Terminal
4 input
(Current
input)
*1. DC reactor (FR-HEL)
Be sure to connect the DC reactor
supplied with the 75K or more.
When a DC reactor is connected to
the 55K or less, remove the jumper
across P1-P/+.
Brake unit
(Option)
CN8
*7
Jumper
*7. A CN8 connector is provided with the 75K
or more.
(Refer to page 37)
(Refer to the Instruction
Manual (applied))
(Refer to the
Instruction Manual
(applied))
(Refer to the
Instruction Manual
(applied))
(Refer to the Instruction
Manual (applied))
14. 9
Wiring
2INSTALLATIONANDWIRING
2.4.2 EMC filter
The inverter is equipped with a built-in EMC filter.
Effective for reduction of air-propagated noise on the input side of the inverter.
The EMC filter is factory-set to disable (OFF).
To enable it, fit the EMC filter ON/OFF connector to the ON position.
The FR-A720-0.4K and 0.75K are not provided with the EMC filter ON/OFF connector. (The EMC filter is always valid.)
<How to disconnect the connector>
(1) Before removing a front cover, check to make sure that the indication of the inverter operation panel is off, wait for
at least 10 minutes after the power supply has been switched off, and check that there are no residual voltage
using a tester or the like. (Refer to page 5.)
(2) When disconnecting the connector, push the fixing tab and pull the connector straight without pulling the cable or
forcibly pulling the connector with the tab fixed. When installing the connector, also engage the fixing tab securely.
If it is difficult to disconnect the connector, use a pair of long-nose pliers, etc.
CAUTION
⋅ Fit the connector to either ON or OFF.
⋅ Enabling (turning on) the EMC filter increase leakage current. (Refer to Instruction Manual (applied))
WARNING
While power is on or when the inverter is running, do not open the front cover. Otherwise you may get an electric shock.
EMC filter OFF EMC filter OFF EMC filter OFFEMC filter ON EMC filter ON EMC filter ON
(initial setting) (initial setting) (initial setting)
EMC filter
ON/OFF
connector
VU W
3.7K or less 5.5K, 7.5K 11K or more
FR-A720-1.5K to 3.7K
FR-A740-0.4K to 3.7K
FR-A720-5.5K, 7.5K
FR-A740-5.5K, 7.5K
FR-A720-11K
FR-A740-11K, 15K
FR-A720-15K to 22K
FR-A740-18.5K, 22K
FR-A720-30K or more
FR-A740-30K or more
EMC filter
ON/OFF connector
(Side view)
Disengage connector fixing tab With tab disengaged,
pull off connector straight.
15. 10
Wiring
2.4.3 Specification of main circuit terminal
2.4.4 Terminal arrangement of the main circuit terminal, power supply and the motor
wiring.
200V class
Terminal
Symbol
Terminal Name Description
R/L1,
S/L2,
T/L3
AC power input
Connect to the commercial power supply.
Keep these terminals open when using the high power factor converter
(FR-HC and MT-HC) or power regeneration common converter (FR-CV).
U, V, W Inverter output Connect a three-phase squirrel-cage motor.
R1/L11,
S1/L21
Power supply for
control circuit
Connected to the AC power supply terminals R/L1 and S/L2. To retain the
alarm display and alarm output or when using the high power factor
converter (FR-HC and MT-HC) or power regeneration common converter
(FR-CV), remove the jumpers from terminals R/L1-R1/L11 and S/L2-S1/
L21 and apply external power to these terminals.
Do not turn off the power supply for control circuit (R1/L11, S1/L21) with the
main circuit power (R/L1, S/L2, T/L3) on. Doing so may damage the
inverter. The circuit should be configured so that the main circuit power (R/
L1, S/L2, T/L3) is also turned off when the power supply for control circuit
(R1/L11, S1/L21) is off.
15K or less : 60VA, 18.5K or more : 80VA
P/+, PR
Brake resistor
connection
Remove the jumper from terminals PR-PX (7.5K or less) and connect an
optional brake resistor (FR-ABR) across terminals P/+-PR.
For the 22K or less, connecting the resistor further provides regenerative
braking power.
P/+, N/-
Brake unit
connection
Connect the brake unit (FR-BU, BU and MT-BU5), power regeneration
common converter (FR-CV), high power factor converter (FR-HC and
MT-HC) or power regeneration converter (MT-RC).
P/+, P1
DC reactor
connection
For the 55K or less, remove the jumper across terminals P/+ - P1 and
connect the DC reactor. (For the 75K or more, a DC reactor is supplied
as standard.)
PR, PX
Built-in brake circuit
connection
When the jumper is connected across terminals PX-PR (initial status),
the built-in brake circuit is valid. (Provided for the 7.5K or less.)
Earth (ground)
For earthing (grounding) the inverter chassis. Must be earthed
(grounded).
CAUTION
· When connecting a dedicated brake resistor (FR-ABR) and brake unit (FR-BU, BU) remove jumpers across terminals PR-PX
(7.5K or less). For details, refer to Instruction Manual (applied).
FR-A720-0.4K, 0.75K FR-A720-1.5K, 2.2K, 3.7K
R/L1 S/L2 T/L3
N/- P/+
PR
PXR1/L11 S1/L21
Charge lamp
As this is an inside cover fixing screw,
do not remove it.
Jumper
Screw size (M4)
Screw size
(M4)
Jumper
MotorPower supply
IM
R/L1 S/L2 T/L3 N/- P/+ PR
PXR1/L11 S1/L21
IM
Charge lamp
Jumper
Screw size (M4)
Screw size
(M4)
Jumper
MotorPower
supply
18. 13
Wiring
2INSTALLATIONANDWIRING
FR-A740-75K, 90K FR-A740-110K, 132K
FR-A740-160K, 185K FR-A740-220K to 500K
IM
R/L1 S/L2 T/L3 N/- P/+
R1/L11 S1/L21
DC reactor
Screw size (M4)
Power
supply
Motor
Jumper
Charge lamp
P/+
Screw size
(M10)
Screw size(M10)
IM
R/L1 S/L2 T/L3 N/-
P/+
R1/L11 S1/L21
P/+
P/+
Screw size (M4)
Jumper
Charge lamp
Screw size
(M10)
Motor
Screw size (M12)
(for option)
Power supply
DC reactor
Screw size (M10)
IM
R/L1 S/L2 T/L3 N/-
P/+
R1/L11 S1/L21
P/+
P/+
Screw size (M4)
Jumper
Charge lamp
Screw size (M12)
Screw size
(M10)
Motor
Screw size (M12)
(for option)
Power supply
DC reactor
IM
R/L1 S/L2 T/L3 N/-
R1/L11 S1/L21
P/+
P/+
Screw size (M4)
Jumper
Charge lamp
MotorPower supply
DC reactor
Screw size (M12)
Screw size (M10)
19. 14
Wiring
CAUTION
· The power supply cables must be connected to R/L1, S/L2, T/L3. Never connect the power cable to the U, V, W of the inverter.
Doing so will damage the inverter. (Phase sequence needs not to be matched.)
· Connect the motor to U, V, W. At this time, turning on the forward rotation switch (signal) rotates the motor in the
counterclockwise direction when viewed from the motor shaft.
· When wiring the inverter main circuit conductor of the FR-F740-220K or more, tighten a nut from the right side of the conductor.
When wiring two wires, place wires on both sides of the conductor. (Refer to the drawing below.) For wiring, use bolts (nuts)
provided with the inverter.
• Handling of the wiring cover
(FR-A720-15K, 18.5K, 22K, FR-A740-18.5K, 22K)
For the hook of the wiring cover, cut off the necessary
parts using a pair of long-nose pliers etc.
CAUTION
Cut off the same number of lugs as wires. If parts where
no wire is put through has been cut off (10mm or more),
protective structure (JEM1030) becomes an open type
(IP00).
20. 15
Wiring
2INSTALLATIONANDWIRING
(1) Cable sizes etc., of the main control circuit terminals and earth (ground) terminals
Select the recommended cable size to ensure that a voltage drop will be 2% max.
If the wiring distance is long between the inverter and motor, a main circuit cable voltage drop will cause the motor
torque to decrease especially at the output of a low frequency.
The following table indicates a selection example for the wiring length of 20m.
200V class (when input power supply is 220V)
Applicable
Inverter Type
Terminal
Screw
Size *4
Tightening
Torque
N·m
Crimping
Terminal
Cable Sizes
HIV, etc. (mm2
) *1 AWG/MCM *2 PVC, etc. (mm2
) *3
R/L1,
S/L2,
T/L3
U, V, W
R/L1,
S/L2,
T/L3
U, V, W P/+, P1
Earth
(Ground)
cable
R/L1,
S/L2,
T/L3
U, V, W
R/L1,
S/L2,
T/L3
U, V, W
Earth
(Ground)
cable
FR-A720-0.4K
to 2.2K
M4 1.5 2-4 2-4 2 2 2 2 14 14 2.5 2.5 2.5
FR-A720-3.7K M4 1.5 5.5-4 5.5-4 3.5 3.5 3.5 3.5 12 12 4 4 4
FR-A720-5.5K M4/M5 2.5 5.5-5 5.5-5 5.5 5.5 5.5 5.5 10 10 6 6 6
FR-A720-7.5K M4/M5 2.5 14-5 8-5 14 8 14 14 6 8 16 10 16
FR-A720-11K M5 2.5 14-5 14-5 14 14 14 14 6 6 16 16 16
FR-A720-15K M6 4.4 22-6 22-6 22 22 22 14 4 4 25 25 16
FR-A720-18.5K M8/M6 7.8 38-8 38-8 38 38 38 22 2 2 35 35 25
FR-A720-22K M8/M6 7.8 38-8 38-8 38 38 38 22 2 2 35 35 25
FR-A720-30K M8/M6 7.8 60-8 60-8 60 60 60 38 1/0 1/0 50 50 25
FR-A720-37K M10/M8 14.7 80-10 80-10 80 80 80 38 3/0 3/0 70 70 35
FR-A720-45K M10/M8 14.7 100-10 100-10 100 100 100 60 4/0 4/0 95 95 50
FR-A720-55K M12/M8 24.5 100-12 100-12 100 100 100 60 4/0 4/0 95 95 50
FR-A720-75K M12/M10 24.5 150-12 150-12 125 125 125 38 250 250
FR-A720-90K M12/M10 24.5 150-12 150-12 150 150 150 60 300 300
*1 For the 55K or less, the cable size is that of the cable (HIV cable (600V class 2 vinyl-insulated cable) etc.) with continuous maximum permissible
temperature of 75°C. Assumes that the ambient temperature is 50°C or less and the wiring distance is 20m or less.
For the 75K or more, the recommended cable size is that of the cable (LMFC (heat resistant flexible cross-linked polyethylene insulated cable)
etc.) with continuous maximum permissible temperature of 90°C. Assumes that the ambient temperature is 50°C or less and wiring is performed
in an enclosure.
*2 The recommended cable size is that of the cable (THHW cable) with continuous maximum permissible temperature of 75°C. Assumes that the
ambient temperature is 40°C or less and the wiring distance is 20m or less.
(Selection example for use mainly in the United States.)
*3 For the 15K or less, the recommended cable size is that of the cable (PVC cable) with continuous maximum permissible temperature of 70°C.
Assumes that the ambient temperature is 40°C or less and the wiring distance is 20m or less.
For the 18.5K or more, the recommended cable size is that of the cable (XLPE cable) with continuous maximum permissible temperature of 90°C.
Assumes that the ambient temperature is 40°C or less and wiring is performed in an enclosure.
(Selection example for use mainly in Europe.)
*4 The terminal screw size indicates the terminal size for R/L1, S/L2, T/L3, U, V, W, and a screw for earthing (grounding). For the 5.5K and 7.5K,
screw sizes are different (R1/L11, S1/L21, PR, PX / R/L1, S/L2, T/L3, U, V, W, a screw for earthing (grounding)). For the 18.5K or more, screw
sizes are different. (R/L1, S/L2, T/L3, U, V, W / a screw for earthing (grounding))
21. 16
Wiring
400V class (when input power supply is 440V)
The line voltage drop can be calculated by the following formula:
line voltage drop [V]=
Use a larger diameter cable when the wiring distance is long or when it is desired to decrease the voltage drop (torque
reduction) in the low speed range.
Applicable
Inverter Type
Terminal
Screw
Size *4
Tightening
Torque
N·m
Crimping
Terminal
Cable Sizes
HIV, etc. (mm2
) *1 AWG/MCM *2 PVC, etc. (mm2
) *3
R/L1,
S/L2,
T/L3
U, V, W
R/L1,
S/L2,
T/L3
U, V, W P/+, P1
Earth
(Ground)
Cable
R/L1,
S/L2,
T/L3
U, V, W
R/L1,
S/L2,
T/L3
U, V, W
Earth
(Ground)
Cable
FR-A740-0.4K
to 3.7K
M4 1.5 2-4 2-4 2 2 2 2 14 14 2.5 2.5 2.5
FR-A740-5.5K M4 1.5 2-4 2-4 2 2 3.5 3.5 12 14 2.5 2.5 4
FR-A740-7.5K M4 1.5 5.5-4 5.5-4 3.5 3.5 3.5 3.5 12 12 4 4 4
FR-A740-11K M5 2.5 5.5-5 5.5-5 5.5 5.5 5.5 8 10 10 6 6 10
FR-A740-15K M5 2.5 8-5 8-5 8 8 8 8 8 8 10 10 10
FR-A740-18.5K M6 4.4 14-6 8-6 14 8 14 14 6 8 16 10 16
FR-A740-22K M6 4.4 14-6 14-6 14 14 22 14 6 6 16 16 16
FR-A740-30K M6 4.4 22-6 22-6 22 22 22 14 4 4 25 25 16
FR-A740-37K M8 7.8 22-8 22-8 22 22 22 14 4 4 25 25 16
FR-A740-45K M8 7.8 38-8 38-8 38 38 38 22 1 2 50 50 25
FR-A740-55K M8 7.8 60-8 60-8 60 60 60 22 1/0 1/0 50 50 25
FR-A740-75K M10 14.7 60-10 60-10 60 60 60 38 1/0 1/0 50 50 25
FR-A740-90K M10 14.7 60-10 60-10 60 60 80 38 3/0 3/0 50 50 25
FR-A740-110K M10/M12 14.7 80-10 80-10 80 80 80 38 3/0 3/0 70 70 35
FR-A740-132K M10/M12 14.7 100-10 100-10 100 100 100 38 4/0 4/0 95 95 50
FR-A740-160K M12/M10 24.5 150-12 150-12 125 150 150 38 250 250 120 120 70
FR-A740-185K M12/M10 24.5 150-12 150-12 150 150 150 38 300 300 150 150 95
FR-A740-220K M12/M10 24.5 100-12 100-12 2×100 2×100 2×100 60 2×4/0 2×4/0 2×95 2×95 95
FR-A740-250K M12/M10 24.5 100-12 100-12 2×100 2×100 2×125 60 2×4/0 2×4/0 2×95 2×95 95
FR-A740-280K M12/M10 24.5 150-12 150-12 2×125 2×125 2×125 60 2×250 2×250 2×120 2×120 120
FR-A740-315K M12/M10 24.5 150-12 150-12 2×150 2×150 2×150 100 2×300 2×300 2×150 2×150 150
FR-A740-355K M12/M10 24.5 C2-200 C2-200 2×200 2×200 2×200 100 2×350 2×350 2×185 2×185 2×95
FR-A740-400K M12/M10 24.5 C2-200 C2-200 2×200 2×200 2×200 100 2×400 2×400 2×185 2×185 2×95
FR-A740-450K M12/M10 24.5 C2-250 C2-200 2×250 2×250 2×250 100 2×500 2×500 2×240 2×240 2×120
FR-A740-500K M12/M10 24.5 C2-200 C2-250 3×200 2×250 3×200 2×100 2×500 2×500 2×240 2×240 2×120
*1 For the 55K or less, the cable size is that of the cable (HIV cable (600V class 2 vinyl-insulated cable) etc.) with continuous maximum permissible
temperature of 75°C. Assumes that the ambient temperature is 50°C or less and the wiring distance is 20m or less.
For the 75K or more, the recommended cable size is that of the cable (LMFC (heat resistant flexible cross-linked polyethylene insulated cable) etc.) with
continuous maximum permissible temperature of 90°C. Assumes that the ambient temperature is 50°C or less and wiring is performed in an enclosure.
*2 For the 45K or less, the recommended cable size is that of the cable (THHW cable) with continuous maximum permissible temperature of 75°C.
Assumes that the ambient temperature is 40°C or less and the wiring distance is 20m or less.
For the 55K or more, the recommended cable size is that of the cable (THHN cable) with continuous maximum permissible temperature of 90°C.
Assumes that the ambient temperature is 40°C or less and wiring is performed in an enclosure.
(Selection example for use mainly in the United States.)
*3 For the 45K or less, the recommended cable size is that of the cable (PVC cable) with continuous maximum permissible temperature of 70°C. Assumes
that the ambient temperature is 40°C or less and the wiring distance is 20m or less.
For the 55K or more, the recommended cable size is that of the cable (XLPE cable) with continuous maximum permissible temperature of 90°C.
Assumes that the ambient temperature is 40°C or less and wiring is performed in an enclosure.
(Selection example for use mainly in Europe.)
*4 The terminal screw size indicates the terminal size for R/L1, S/L2, T/L3, U, V, W, and a screw for earthing (grounding).
For the 110K and 132K, screw sizes are different (R/L1, S/L2, T/L3, U, V, W, a screw for earthing (grounding) / P/+ for option connection)
For the 160K or more, screw sizes are different. (R/L1, S/L2, T/L3, U, V, W / a screw for earthing (grounding))
CAUTION
· Tighten the terminal screw to the specified torque.
A screw that has been tighten too loosely can cause a short circuit or malfunction.
A screw that has been tighten too tightly can cause a short circuit or malfunction due to the unit breakage.
· Use crimping terminals with insulation sleeve to wire the power supply and motor.
3 × wire resistance[mΩ/m] × wiring distance[m] × current[A]
1000
22. 17
Wiring
2INSTALLATIONANDWIRING
(2) Notes on earthing (grounding)
• Leakage currents flow in the inverter. To prevent an electric shock, the inverter and motor must be earthed (grounded). This
inverter must be earthed (grounded). Earthing (Grounding) must conform to the requirements of national and local safety
regulations and electrical codes. (JIS, NEC section 250, IEC 536 class 1 and other applicable standards)
• Use the dedicated earth (ground) terminal to earth (ground) the inverter.
(Do not use the screw in the casing, chassis, etc.)
• Use the thickest possible earth (ground) cable. Use the cable whose size is equal to or greater than that indicated in page
15, 16, and minimize the cable length. The earthing (grounding) point should be as near as possible to the inverter.
To be compliant with the European Directive (Low Voltage Directive), earth (ground) the inverter
according to the instructions on page 182.
(3) Total wiring length
The overall wiring length for connection of a single motor or multiple motors should be within the value in the table below.
(The wiring length should be 100m maximum for vector control.)
When driving a 400V class motor by the inverter, surge voltages attributable to the wiring constants may occur at the
motor terminals, deteriorating the insulation of the motor.
Take the following measures (1) or (2) in this case.
(1) Use a "400V class inverter-driven insulation-enhanced motor" and set frequency in Pr. 72 PWM frequency selection
according to wiring length
(2) Connect the surge voltage suppression filter (FR-ASF-H) to the 55K or less and the sine wave filter (MT-BSL/BSC) to
the 75K or more on the inverter output side.
(4) Cable size of the control circuit power supply (terminal R1/L11, S1/L21)
· Terminal screw size: M4
· Cable size: 0.75mm2 to 2mm2
· Tightening torque: 1.5N·m
Pr. 72 PWM frequency selection setting
(carrier frequency)
0.4K 0.75K 1.5K or more
2 (2kHz) or less 300m 500m 500m
3 to 15 (3kHz to 14.5kHz) 200m 300m 500m
Total wiring length (1.5K or more)
CAUTION
· Especially for long-distance wiring, the inverter may be affected by a charging current caused by the stray capacitances of the
wiring, leading to a malfunction of the overcurrent protective function or fast response current limit function or a malfunction or fault
of the equipment connected on the inverter output side. If fast-response current limit function malfunctions, disable this function.
(For Pr. 156 Stall prevention operation selection, refer to Instruction Manual (applied).)
· For details of Pr. 72 PWM frequency selection , refer to Instruction Manual (applied). (When using an option sine wave filter
(MT-BSL/BSC) for the 75K or more, set "25" (2.5kHz) in Pr. 72.)
For explanation of surge voltage suppression filter (FR-ASF-H) and sine wave filter (MT-BSL/BSC), refer to the manual of each
option.
· Do not perform vector control with a surge voltage suppression filter (FR-ASF-H) or sine wave filer (MT-BSL/BSC) connected.
500m or less
300m
300m
300m + 300m = 600m
Wiring Length
50m or less 50m to 100m exceeding 100m
Carrier frequency 14.5kHz or less 9kHz or less 4kHz or less
23. 18
Wiring
(5) When connecting the control circuit and the main circuit separately to the power supply
(separate power)
• FR-A720-0.4K to 3.7K, FR-A740-0.4K to 3.7K
• FR-A720-5.5K, 7.5K, FR-A740-5.5K, 7.5K
<Connection diagram> When the protected circuit is activated, opening of the electromagnetic
contactor (MC) on the inverter power supply side results in power loss in the
control circuit, disabling the alarm output signal retention. Terminals R1/L11
and S1/L21 are provided to hold an alarm signal. In this case, connect the
power supply terminals R1/L11 and S1/L21 of the control circuit to the
primary side of the MC.
1)Loosen the upper screws.
2)Remove the lower screws.
3)Remove the jumper
4)Connect the separate power
supply cable for the control
circuit to the lower terminals
(R1/L11, S1/L21).
1)Remove the upper screws.
2)Remove the lower screws.
3)Remove the jumper.
4)Connect the separate power
supply cable for the control
circuit to the upper terminals
(R1/L11, S1/L21).
Inverter
MC
R/L1
S/L2
T/L3
R1/L11
S1/L21
Remove the jumper
Main circuit terminal block
R1/L11
S1/L21
3)
1)
2)
4)
S/L2
T/L3
R1/L11
S1/L21
R/L1
3)
4)
1)
2)
Main circuit
terminal block
S1/L21
R1/L11
S/
L2 T/
L3
R/
L1
R1/L11
S1/L21
24. 19
Wiring
2INSTALLATIONANDWIRING
• FR-A720-11K or more, FR-A740-11K or more
1)Remove the upper screws.
2)Remove the lower screws.
3)Pull the jumper toward you to
remove.
4)Connect the separate power supply
cable for the control circuit to the
upper terminals (R1/L11, S1/L21).
Never connect the power cable to
the terminals in the lower stand.
Doing so will damage the inverter.
CAUTION
· Do not turn off the control power (terminals R1/L11 and S1/L21) with the main circuit power (R/L1, S/L2, T/L3) on. Doing so may
damage the inverter.
· Be sure to use the inverter with the jumpers across terminals R/L1-R1/L11 and S/L2-S1/L21 removed when supplying power from
other sources. The inverter may be damaged if you do not remove the jumper.
· The voltage should be the same as that of the main control circuit when the control circuit power is supplied from other than the
primary side of the MC.
· The power capacity is 60VA or more for 15K or less, 80VA or more for 18.5K or more when separate power is supplied from R1/L11,
S1/L21.
· When the power supply used with the control circuit is different from the one used with the main circuit, make up a circuit which will
switch off the main circuit power supply terminals R/L1, S/L2, T/L3 when the control circuit power supply terminals R1/L11, S1/L21
are switched off.
· If the main circuit power is switched off (for 0.1s or more) then on again, the inverter resets and an alarm output will not be held.
S1/L21
R1/L11
3)
4)
1)
2)
Power supply
terminal block for
the control circuit
Power supply terminal block
for the control circuit
R/L1S/L2 T/L3
R1/
L11
S1/
L21 Power supply
terminal block
for the control circuit
Main power supply
MC
VU W
FR-A720-11K,
FR-A740-11K, 15K
FR-A720-15K, 18.5K, 22K
FR-A740-18.5K, 22K
FR-A720-30K or more,
FR-A740-30K or more
25. 20
Wiring
2.4.5 Control circuit terminals
indicates that terminal functions can be selected using Pr. 178 to Pr. 196 (I/O terminal function selection) (Refer to
Instruction Manual (applied).)
(1) Input signals
Type
Terminal
Symbol
Terminal
Name
Description
Rated
Specifications
Refer to
page
Contactinput
STF
Forward
rotation start
Turn on the STF signal to start forward
rotation and turn it off to stop.
When the STF and STR
signals are turned on
simultaneously,the stop
command is given.
Input resistance
4.7kΩ
Voltage at
opening: 21 to
27VDC
Contacts at
short-circuited: 4
to 6mADC
78
STR
Reverse
rotation start
Turn on the STR signal to start reverse
rotation and turn it off to stop.
STOP
Start self-
holding
selection
Turn on the STOP signal to self-hold the start signal.
Instruction
Manual
(applied)
RH,
RM, RL
Multi-speed
selection
Multi-speed can be selected according to the combination of RH,
RM and RL signals.
79
JOG
Jog mode
selection
Turn on the JOG signal to select Jog operation (initial setting) and
turn on the start signal (STF or STR) to start Jog operation.
Instruction
Manual
(applied)
Pulse train
input
JOG terminal can be used as pulse train input terminal. To use as
pulse train input terminal, the Pr. 291 setting needs to be changed.
(maximum input pulse: 100kpulses/s)
Input resistance
2kΩ
Contacts at
short-circuited: 8
to 13mADC
Instruction
Manual
(applied)
RT
Second
function
selection
Turn on the RT signal to select second function.
When the second function such as "second torque boost" and
"second V/F (base frequency)" are set, turning on the RT signal
selects these functions.
Input resistance
4.7kΩ
Voltage at
opening: 21 to
27VDC
Contacts at
short-circuited: 4
to 6mADC
Instruction
Manual
(applied)
MRS Output stop
Turn on the MRS signal (20ms or more) to stop the inverter
output.
Use to shut off the inverter output when stopping the motor by
electromagnetic brake.
Instruction
Manual
(applied)
RES Reset
Used to reset alarm output provided when protective function is
activated.
Turn on the RES signal for more than 0.1s, then turn it off.
Initial setting is for reset always. By setting Pr. 75, reset can be set
to enabled only at an inverter alarm occurrence. Recover about
1s after reset is cancelled.
129
AU
Terminal 4 input
selection
Terminal 4 is made valid only when the AU signal is turned on. (The
frequency setting signal can be set between 4 and 20mADC.)
Turning the AU signal on makes terminal 2 (voltage input) invalid.
83
PTC input
AU terminal is used as PTC input terminal (thermal protection of
the motor). When using it as PTC input terminal, set the AU/PTC
switch to PTC.
Instruction
Manual
(applied)
CS
Selection of
automatic
restart after
instantaneous
power failure
When the CS signal is left on, the inverter restarts automatically at
power restoration. Note that restart setting is necessary for this
operation. In the initial setting, a restart is disabled.
(Refer to Pr. 57 Restart coasting time in Instruction Manual (applied).)
Instruction
Manual
(applied)
SD
Contact input
common (sink)
Common terminal for contact input terminal (sink logic) and
terminal FM.
Common output terminal for 24VDC 0.1A power supply (PC
terminal).
Isolated from terminals 5 and SE.
-------------------- —
PC
External
transistor
common,
24VDC power
supply, contact
input common
(source)
When connecting the transistor output (open collector output), such
as a programmable controller (PLC), when sink logic is selected,
connect the external power supply common for transistor output to
this terminal to prevent a malfunction caused by undesirable
currents.
Can be used as 24VDC 0.1A power supply.
When source logic has been selected, this terminal serves as a
contact input common.
Power supply
voltage range
19.2 to 28.8VDC
Current
consumption
100mA
24
26. 21
Wiring
2INSTALLATIONANDWIRING
* In the following case, the input resistance is 10kΩ ± 1kΩ while power is off.
⋅ When current input is selected for Pr.73 or Pr.267 for the 3.7K or less
⋅ When the voltage/current input switch is in the OFF position and current input is selected for Pr.73 or Pr.267 for the 5.5K or more
(2) Output signals
Frequencysetting
10E
Frequency
setting power
supply
When connecting the frequency setting potentiometer at an initial
status, connect it to terminal 10.
Change the input specifications of terminal 2 when connecting it
to terminal 10E. (Refer to Pr. 73 Analog input selection in
Instruction Manual (applied).)
10VDC
Permissible load
current 10mA
Instruction
Manual
(applied)
10
5VDC
Permissible load
current 10mA
76, 81
2
Frequency
setting
(voltage)
Inputting 0 to 5VDC (or 0 to 10V, 4 to 20mA) provides the
maximum output frequency at 5V (10V, 20mA) and makes input
and output proportional. Use Pr.73 to switch between input 0 to
5VDC (initial setting) and 0 to 20mADC when the voltage/current
input switch is in the OFF position (initially set to OFF). The
current input is always the same when the voltage/current input
switch is in the ON position (Pr.73 needs to be set to current input).
Voltage input:
Input resistance
10kΩ ± 1kΩ
Maximum
permissible
voltage 20VDC
Current input:
Input resistance
245Ω ± 5Ω
Maximum
permissible
current 30mA *
76, 81
4
Frequency
setting
(current)
Inputting 4 to 20mADC (or 0 to 5V, 0 to 10V) provides the maximum
output frequency at 20mA (5V, 10V) makes input and output
proportional. This input signal is valid only when the AU signal is on
(terminal 2 input is invalid). Use Pr.267 to switch between input 4 to
20mA (initial setting) and 0 to 10VDC when the voltage/current input
switch is in the OFF position (initially set to ON). The current input is
always the same when the voltage/current input switch is in the ON
position (Pr.267 needs to be set to current input).
Use Pr. 858 to switch terminal functions.
(Refer to Instruction Manual (applied).)
77, 83
1
Frequency
setting
auxiliary
Inputting 0 to ±5 VDC or 0 to ±10VDC adds this signal to terminal
2 or 4 frequency setting signal. Use Pr. 73 to switch between the
input 0 to ±5VDC and 0 to ±10VDC (initial setting).
Use Pr. 868 to switch terminal functions.
Input resistance
10kΩ ± 1kΩ
Maximum
permissiblevoltage
± 20VDC
Instruction
Manual
(applied)
5
Frequency
setting
common
Common terminal for frequency setting signal (terminal 2, 1 or 4)
and analog output terminal AM. Do not earth (ground).
-------------------- ------
Type
Terminal
Symbol
Terminal
Name
Description
Rated
Specifications
Refer to
page
Relay
A1,
B1,
C1
Relay output 1
(alarm output)
1 changeover contact output indicates that the inverter
protective function has activated and the output stopped.
Abnormal: No conduction across B-C (Across A-C Continuity),
Normal: Across B-C Continuity (No conduction across A-C)
Contact capacity:
230VAC 0.3A
(Power
factor=0.4)
30VDC 0.3A
Instruction
Manual
(applied)
A2,
B2,
C2
Relay output 2 1 changeover contact output
Instruction
Manual
(applied)
Type
Terminal
Symbol
Terminal
Name
Description
Rated
Specifications
Refer to
page
27. 22
Wiring
*1 Low indicates that the open collector output transistor is on (conducts).
High indicates that the transistor is off (does not conduct).
*2 Not output during inverter reset.
(3) Communication
Opencollector
RUN
Inverter
running
Switched low when the inverter output frequency is equal to or higher
than the starting frequency (initial value 0.5Hz). Switched high during
stop or DC injection brake operation.*1
Permissible load
24VDC 0.1A
(A voltage drop is
2.8V maximum
when the signal is
on.)
Instruction
Manual
(applied)
SU
Up to
frequency
Switched low when the output frequency
reaches within the range of ±10% (initial
value) of the set frequency. Switched high
during acceleration/deceleration and at a
stop. *1
Alarm code (4bit)
output
Instruction
Manual
(applied)
OL Overload alarm
Switched low when stall prevention is
activated by the stall prevention
function. Switched high when stall
prevention is cancelled. *1
Instruction
Manual
(applied)
IPF
Instantaneous
power failure
Switched low when an instantaneous
power failure and under voltage
protections are activated. *1
Instruction
Manual
(applied)
FU
Frequency
detection
Switched low when the inverter output
frequency is equal to or higher than the
preset detected frequency and high
when less than the preset detected
frequency. *1
Instruction
Manual
(applied)
SE
Open collector
output common
Common terminal for terminals RUN, SU, OL, IPF, FU -------------------- -----
Pulse
FM
For meter
Select one e.g. output frequency from
monitor items. *2
The output signal is proportional to the
magnitude of the corresponding
monitoring item.
Output item:
Output frequency
(initial setting)
Permissible load
current 2mA
1440pulses/s at
60Hz
Instruction
Manual
(applied)
NPN open
collector output
Signals can be output
from the open
collector terminals by
setting Pr. 291.
Maximum output
pulse: 50kpulses/s
Permissible load
current : 80mA
Instruction
Manual
(applied)
Analog
AM
Analog signal
output
Output item:
Output frequency
(initial setting)
Output signal 0 to
10VDC
Permissible load
current 1mA
(load impedance
10kΩ or more)
Resolution 8 bit
Instruction
Manual
(applied)
Type
Terminal
Symbol
Terminal
Name
Description
Referto
page
RS-485
--------------------
PU
connector
With the PU connector, communication can be made through RS-485.
(for connection on a 1:1 basis only)
. Conforming standard : EIA-485(RS-485)
. Transmission format : Multidrop
. Communication speed : 4800 to 38400bps
. Overall length : 500m
26
RS-485terminals
TXD+ Inverter
transmission
terminal
With the RS-485 terminals, communication can be made through RS-485.
Conforming standard : EIA-485(RS-485)
Transmission format : Multidrop link
Communication speed : 300 to 38400bps
Overall length : 500m
26
TXD-
RXD+ Inverter
reception
terminalRXD-
SG Earth (Ground)
USB
--------------------
USB
connector
The FR-Configurator can be performed by connecting the inverter to the personnel
computer through USB.
Interfase:Conforms to USB1.1
Transmission speed:12Mbps
Connector:USB B connector (B receptacle)
27
Type
Terminal
Symbol
Terminal
Name
Description
Rated
Specifications
Refer to
page
28. 23
Wiring
2INSTALLATIONANDWIRING
2.4.6 Changing the control logic
The input signals are set to sink logic (SINK) when shipped from the factory.
To change the control logic, the jumper connector on the back of the control circuit terminal block must be moved to the
other position.
(The output signals may be used in either the sink or source logic independently of the jumper connector position.)
1)Loosen the two installation screws in both ends of the control circuit terminal block. (These screws cannot be
removed.)
Pull down the terminal block from behind the control circuit terminals.
2)Change the jumper connector set to the sink logic (SINK) on the rear panel of the control circuit terminal block to
source logic (SOURCE).
3)Using care not to bend the pins of the inverter's control circuit connector, reinstall the control circuit terminal block
and fix it with the mounting screws.
CAUTION
1. Make sure that the control circuit connector is fitted correctly.
2. While power is on, never disconnect the control circuit terminal block.
Jumper connector
29. 24
Wiring
4)Sink logic and source logic
⋅ In sink logic, a signal switches on when a current flows from the corresponding signal input terminal.
Terminal SD is common to the contact input signals. Terminal SE is common to the open collector output signals.
⋅ In source logic, a signal switches on when a current flows into the corresponding signal input terminal.
Terminal PC is common to the contact input signals. Terminal SE is common to the open collector output signals.
• When using an external power supply for transistor output
⋅ Sink logic type
Use terminal PC as a common terminal to prevent a
malfunction caused by undesirable current. (Do not
connect terminal SD of the inverter with terminal 0V of
the external power supply. When using terminals PC-
SD as a 24VDC power supply, do not install a power
supply in parallel in the outside of the inverter. Doing so
may cause a malfunction due to undesirable current.)
⋅ Source logic type
When using an external power supply for transistor
output, use terminal SD as a common to prevent
misoperation caused by undesirable current.
Current
PC
STF
R
STR
R
Source logic
Source
connector
Current
SD
STF
R
STR
R
Sink
connector
Sink logic
Current flow concerning the input/output signal
when sink logic is selected
Current flow concerning the input/output signal
when source logic is selected
DC input (source type)
<Example: AX80>
24VDC
RUN
SE
1
9
R
Inverter
R
Current flow
+ -+-
DC input (sink type)
<Example: AX40>
Inverter
24VDC
RUN
SE
1
9
R
R
Current flow
AY40 type
transistor
output unit 1
2
910
24VDC SD
PC
STR
STF
Inverter
24VDC
(SD)
9
Current flow
AY80 type
transistor
output unit
9
1
2
10
PC
STF
STR
SD
Inverter
24VDC
(SD)
24VDC
Current flow
30. 25
Wiring
2INSTALLATIONANDWIRING
2.4.7 Wiring of control circuit
(1) Control circuit terminal layout
(2) Wiring instructions
1) Terminals 5, SD and SE are common to the I/O signals and isolated from each other. Do not earth (ground). Avoid
connecting the terminal SD and 5 and the terminal SE and 5.
2) Use shielded or twisted cables for connection to the control circuit terminals and run them away from the main and
power circuits (including the 200V relay sequence circuit).
3) Use two or more parallel micro-signal contacts or twin contacts to
prevent a contact faults when using contact inputs since the
control circuit input signals are micro-currents.
4) Do not apply a voltage to the contact input terminals (e.g. STF) of the control circuit.
5) Always apply a voltage to the alarm output terminals (A, B, C) via a relay coil, lamp, etc.
6) It is recommended to use the cables of 0.75mm2
gauge for connection to the control circuit terminals.
If the cable gauge used is 1.25mm2
or more, the front cover may be lifted when there are many cables running or
the cables are run improperly, resulting in an operation panel contact fault.
7) The wiring length should be 30m maximum.
Terminal screw size: M3.5
Tightening torque: 1.2N·m
Wiring of the control circuit of the 75K or more
For wiring of the control circuit of the 75K or more, separate away from wiring of the main circuit.
Make cuts in rubber bush of the inverter side and lead wires.
A1 B1 C1 A2 B2 C2 10E 10 2 5 4
1AMSDRESMRSSTOPAURTRHRMRL
PCCSJOGSTRSTFSDSDFUOLIPFSURUNSE
FM
Micro signal contacts Twin contacts
<Wiring>
Rubber bush
(view from the inside)
Make cuts along the lines inside with
a cutter knife and such.
31. 26
Wiring
2.4.8 When connecting the operation panel using a connection cable
When connecting the operation panel (FR-DU07) to the inverter using a cable, the operation panel can be mounted
on the enclosure surface and operationality improves.
2.4.9 RS-485 terminal block
CAUTION
Do not connect the PU connector to the computer's LAN port, FAX modem socket or telephone connector.
The inverter and machine could be damaged due to differences in electrical specifications.
REMARKS
⋅ Refer to page 5 for removal method of the operation panel.
⋅ When using a commercially available connector and cable as a parameter unit connection cable, refer to Instruction Manual
(applied).
⋅ The inverter can be connected to the computer and FR-PU04/FR-PU07.
⋅ Conforming standard: EIA-485(RS-485)
⋅ Transmission format: Multidrop link
⋅ Communication speed: MAX 38400bps
⋅ Overall length: 500m
⋅ Connection cable:Twisted pair cable
(4 paires)
Parameter unit connection cable
(FR-CB2 )(option)
Operation panel(FR-DU07)
Operation panel connection connector
(FR-ADP)(option)
RXDRDA1
(RXD1+)
RDB1
(RXD1-)
RDA2
(RXD2+)
RDB2
(RXD2-)
SDA1
(TXD1+)
SDB1
(TXD1-)
SDA2
(TXD2+)
SDB2
(TXD2-)
P5S
(VCC)
SG
(GND)
P5S
(VCC)
SG
(GND) VCC
TXD
OPEN
100Ω
Terminating resistor switch
Factory-set to "OPEN".
Set only the terminating resistor switch of
the remotest inverter to the "100Ω" position.
32. 27
Wiring
2INSTALLATIONANDWIRING
2.4.10 Communication operation
2.4.11 USB connector
A personal computer and an inverter can be connected with a USB (Ver1. 1) cable.
You can perform parameter setting and monitoring with the FR-Configurator.
•USB communication specifications
Using the PU connector or RS-485 terminal, you can
perform communication operation from a personal
computer etc. When the PU connector is connected
with a personal, FA or other computer by a
communication cable, a user program can run and
monitor the inverter or read and write to parameters.
For the Mitsubishi inverter protocol (computer link
operation), communication can be performed with the
PU connector and RS-485 terminal.
For the Modbus RTU protocol, communication can be
performed with the RS-485 terminal.
For further details, refer to Instruction Manual
(applied).
Interfase Conforms to USB1.1
Transmission speed 12Mbps
Wiring length Maximum 5m
Connector USB B connector (B receptacle)
Power supply Self-power supply
PLC
Multidrop link
(32 inverters maximum
are connectable)
Inverter Inverter Inverter
USB cable USB connector
Place a flat-blade screwdriver,
etc. in a slot and push up the
cover to open.
Removal of cover
33. 28
Wiring
2.4.12 Connection of motor with encoder(vector control)
Orientation control and encoder feedback control, and speed control, torque control and position control by full-scale
vector control operation can be performed using a motor with encoder and a plug-in option FR-A7AP.
(1) Structure of the FR-A7AP
(2) Terminals of the FR-A7AP
Terminal Terminal Name Description
PA1 Encoder A-phase signal input
A-, B- and Z-phase signals are input from the encoder.
PA2 Encoder A-phase inverse signal input
PB1 Encoder B-phase signal input
PB2 Encoder B-phase inverse signal input
PZ1 Encoder Z-phase signal input
PZ2 Encoder Z-phase inversion signal input
PG Power supply (positive side) input Input power for the encoder power supply.
Connect the external power supply (5V, 12V, 15V, 24V) and the
encoder power cable.SD Power supply ground
PIN
Not used.
PO
Front view Rear view
Mounting
hole
Mounting
hole
Mounting
hole
Encoder specification selection switch (SW1)
Used to change the specification of encoder
(differential line driver/complementary).
Switch for manufacturer
setting (SW3)
Do not change from initially-
set status (1, 2:OFF ).
Terminating resistor selection
switch (SW2)
Switch ON/OFF of the internal
terminating resistor.
CON2 connector
Not used.
Terminal
block
Connector
Connect to the inverter
option connector.
Terminal layout
PA2
PB2
PZ2
SD
SD
PO
PA1
PB1
PZ1
PG
PG
PIN
1
2
3
4
O
N
1
2
O
N
1
2
O
N
SW2
SW1
LED1
LED2
LED3
SW3
FR-A7AP
PIN and PO are
not used.
(Refer to page 29.)
(Refer to page 29.)
34. 29
Wiring
2INSTALLATIONANDWIRING
(3) Switches of the FR-A7AP
• Encoder specification selection switch (SW1)
Select either differential line driver or complementary
It is initially set to the differential line driver. Switch its position according
to output circuit.
• Terminating resistor selection switch (SW2)
Select ON/OFF of the internal terminating resistor. Set the switch to ON
(initial status) when an encoder output type is differential line driver and
set to OFF when complimentary.
ON : with internal terminating resistor (initial setting status)
OFF: without internal terminating resistor
• Motor used and switch setting
• Encoder specification
REMARKS
· Set all swithces to the same setting (ON/OFF).
· If the encoder output type is differential line driver, set the terminating resistor
switch to the "OFF" position when sharing the same encoder with other unit (NC
(numerical controller), etc) or a terminating resistor is connected to other unit.
Motor
Encoder Specification
Selection Switch (SW1)
Terminating Resistor
Selection Switch (SW2)
Power
Specifications *2
Mitsubishi standard motor
Mitsubishi high efficiency
motor
SF-JR Differential ON 5V
SF-HR Differential ON 5V
Others *1 *1 *1
Mitsubishi constant-
torque motor
SF-JRCA Differential ON 5V
SF-HRCA Differential ON 5V
Others *1 *1 *1
Dedicated motor
SF-V5RU Complimentary OFF 12V
SF-VR Differential ON 5V
Other manufacturer motor – *1 *1 *1
*1 Set according to the motor encoder used.
*2 Choose a power supply for encoder according to the encoder used (5V/12V/15V/24V).
CAUTION
SW3 switch is for manufacturer setting. Do not change the setting.
Item Encoder for SF-JR Encoder for SF-V5RU
Resolution 1024 Pulse/Rev 2048 Pulse/Rev
Power supply
voltage
DC5V±10% DC12V±10%
Current
consumption
150mA 150mA
Output signal form
A, B phases (90° phase shift)
Z phase: 1 pulse/rev
A, B phases (90° phase shift)
Z phase: 1 pulse/rev
Output circuit
Differential line driver 74LS113
equivalent
Complimentary
(constant voltage output matched
by emitter follow)
Output voltage
H level: 2.4V or more
L level: 0.5V or less
H level: -3V or more
L level: 3V or less
CAUTION
Encoder with resolution of 1000 to 4096 pulse/rev is recommended.
Complementary
Differential line
driver (initial status)
1
2
3
4
O
N
1
2
O
NSW2
SW1
SW3
FR-A7AP
Internal terminating
resistor-ON
(initial status)
Internal terminating resistor-OFF
1
2
3
4
O
N
1
2
O
NSW2
SW1
SW3
FR-A7AP
35. 30
Wiring
(4) Encoder Cable
• When using the dedicated encoder cable (FR-JCBL, FR-V5CBL, etc.) for the conventional motor, cut the crimpling
terminal of the encoder cable and strip its sheath to make its cables loose.
Also, protect the shielded cable of the twisted pair shielded cable to ensure that it will not make contact with the
conductive area.
Wire the stripped cable after twisting it to prevent it from becoming loose. In addition, do not
solder it. In addition, do not solder it. In addition, do not solder it.
Use a bar terminal as necessary.
Connection terminal compatibility table
SF-JR Motor with Encoder SF-V5RU
* As the terminal block of the FR-A7AP is an insertion type, earth cables need to be modified. (See below)
REMARKS
Information on bar terminals
Introduced products (as of August, 2005): Phoenix Contact Co.,Ltd.
Motor SF-V5RU
SF-JR/HR/JRCA/HRCA
(with Encoder)
Encoder cable FR-V7CBL/FR-V5CBL FR-JCBL
FR-A7AP terminal
PA1 PA PA
PA2 Keep this open. PAR
PB1 PB PB
PB2 Keep this open. PBR
PZ1 PZ PZ
PZ2 Keep this open. PZR
PG PG 5E
SD SD AG2
60
L
F-DPEVSB 12P 0.2mm2 MS3057-12A
Earth cable
MS3106B20-29S
Approx. 140
Type Length L (m)
FR-JCBL5 5
FR-JCBL15 15
FR-JCBL30 30
*
PZ2
PZ1
PB2
PB1
PA2
PA1
PG
SD
P
B
N
A
R
C
H
K
Encoder
2mm2
A B
C
D
EK
F
GH
J
L
M
S
N
R
PT
MS3106B20-29S
(As viewed from wiring side)
Positioning keyway
FR-A700
(FR-A7AP)
L MS3106B20-29S
Earth cable
F-DPEVSB 12P 0.2mm2
MS3057-12A
Encoder side
connector
Inverter side
11mm
60mm
Type Length L (m)
FR-V7CBL5 5
FR-V7CBL15 15
FR-V7CBL30 30
⋅ A P clip for earthing (grounding) a
shielded cable is provided.
PZ2
PZ1
PB2
PB1
PA2
PA1
SD
PG
G
F
D
C
B
A
R
S
Encoder
2mm2
FR-A700
(FR-A7AP)
A
B
C
D
EK
F
GH
J
L
M
S
N
R
PT
MS3106B20-29S
As viewed from wiring side
Positioning keyway
Cable stripping size
5mm
Terminal Screw
Size
Bar Terminal Model
(with insulation
sleeve)
Bar Terminal Model
(without insulation
sleeve)
Wire Size (mm2
)
M2 Al 0.5-6WH A 0.5-6 0.3 to 0.5
When using the bar terminal (without insulation sleeve),
use care so that the twisted wires do not come out.
36. 31
Wiring
2INSTALLATIONANDWIRING
(5) Wiring
• Speed control
• Torque control
Standard motor with encoder (SF-JR), 5V differential line driver
Vector control dedicated motor
(SF-V5RU), 12V complimentary
Standard motor with encoder (SF-JR), 5V differential line driver
Vector control dedicated motor
(SF-V5RU), 12V complimentary
*1 For the fan of the 7.5kW or less dedicated motor, the power supply is single phase. (200V/50Hz, 200 to 230V/60Hz)
*2 Assign OH (external thermal input) signal to the terminal CS. (Set "7" in Pr. 186 )
Connect a 2W1kW resistor between the terminal PC and CS (OH). Install the resistor pushing against
the bottom part of the terminal block so as to avoid a contact with other cables.
Refer to the instruction manual (applied) for details of Pr.186 CS terminal function selection.
*3 The pin number differs according to the encoder used.
*4 Connect the encoder so that there is no looseness between the motor and motor shaft. Speed ratio should be 1:1.
*5 Earth (Ground) the shielded cable of the encoder cable to the enclosure with a P clip, etc. (Refer to page 33.)
*6 For the complementary, set the terminating resistor selection switch to off position. (Refer to page 29.)
*7 A separate power supply of 5V/12V/15V/24V is necessary according to the encoder power specification.
When performing orientation control together, an encoder and power supply can be shared.
*8 For terminal compatibility of the FR-JCBL, FR-V7CBL and FR-A7AP, refer to page 30.
Three-phase
AC power supply
MCCB
R/L1
S/L2
T/L3
SF-JR motor
with encoder
U
V
W
U
V
W
E
C
*5
*3
*4
*6
*8
R
PA1
FR-A7AP
PA2
PB1
PB2
PZ1
PZ2
PG
PG
SD
SD
Differential
Terminating
resistor ON
OFF
Complimentary
A
N
B
P
H
K
IM
Forward rotation start
Reverse rotation start
Contact input common
STF
STR
SD
Encoder
Earth
(Ground)
Inverter
10
2
2
3
1
1
Frequency command
Frequency setting
potentiometer
1/2W1kΩ 5
(+)
(-) 5VDC power supply *7
(+) (-)
Torque limit
command
( 10V) *6 *8
*5
PA1
FR-A7AP
PA2
PB1
PB2
PZ1
PZ2
*3
SF-V5RU
U
V
W
U
A
B
C
V
W
E
G1
G2
A
*4
MCCB
B
C
D
F
G
S
R
IM
FAN
*1
CS(OH)
SD
Inverter
PC
2W1kΩ
(+) (-)
Differential
Terminating
resistor
ON
OFF
Complimentary
Three-phase
AC power supply
Encoder
External
thermal
relay input *2
Thermal relay
protector
12VDC power supply *7
Earth
(Ground)
PG
PG
SD
SD
Three-phase
AC power supply
MCCB
R/L1
S/L2
T/L3
SF-JR motor
with encoder
U
V
W
U
V
W
E
C
*5
*3
*4
*6
*8
R
PA1
FR-A7AP
PA2
PB1
PB2
PZ1
PZ2
PG
PG
SD
SD
Differential
Terminating
resistor ON
OFF
Complimentary
A
N
B
P
H
K
IM
Forward rotation start
Reverse rotation start
Contact input common
STF
STR
SD
Encoder
Earth
(Ground)
Inverter
10
2
2
3
1
1
Speed limit command
Frequency setting
potentiometer
1/2W1kΩ 5
(+)
(-) 5VDC
power supply *7(+) (-)
Torque command
( 10V)
*6 *8
*5
PA1
FR-A7AP
PA2
PB1
PB2
PZ1
PZ2
*3
SF-V5RU
U
V
W
U
A
B
C
V
W
E
G1
G2
A
*4
MCCB
B
C
D
F
G
S
R
IM
FAN
*1
CS(OH)
SD
Inverter
PC
2W1kΩ
(+) (-)
Differential
Terminating
resistor
ON
OFF
Complimentary
Three-phase
AC power supply
Encoder
External
thermal
relay input *2
Thermal relay
protector
12VDC power supply *7
Earth
(Ground)
PG
PG
SD
SD
CS(OH)
Resistor (2W1kΩ)
PC
Control circuit
terminal block
37. 32
Wiring
• Position control
Vector control dedicated motor (SF-V5RU), 12V complimentary
*1 For the fan of the 7.5kW or less dedicated motor, the power supply is single phase. (200V/50Hz, 200 to 230V/60Hz)
*2 Assign OH (external thermal input) signal to the terminal CS. (Set "7" in Pr. 186 )
Connect a 2W1kW resistor between the terminal PC and CS (OH). Install the
resistor pushing against the bottom part of the terminal block so as to avoid a
contact with other cables.
Refer to the instruction manual (applied) for details of Pr.186 CS terminal function
selection.
*3 The pin number differs according to the encoder used.
*4 Connect the encoder so that there is no looseness between the motor and motor shaft. Speed ratio should be 1:1.
*5 Earth (Ground) the shielded cable of the encoder cable to the enclosure with a P clip, etc. (Refer to page 33.)
*6 For the complementary, set the terminating resistor selection switch to off position. (Refer to page 29.)
*7 A separate power supply of 5V/12V/15V/24V is necessary according to the encoder power specification.
When performing orientation control together, an encoder and power supply can be shared.
*8 For terminal compatibility of the FR-JCBL, FR-V7CBL and FR-A7AP, refer to page 30.
*9 Assign the function using Pr.178 to Pr.184, Pr.187 to Pr.189 (input terminal function selection).
*10 When position control is selected, terminal JOG function is made invalid and conditional position pulse train input
terminal becomes valid.
*11 Assign the function using Pr.190 to Pr.194 (output terminal function selection).
1
5
(+)
(-)
MCCB
R/L1
S/L2
T/L3
*6 *8
*5
PA1
FR-A7AP
PA2
PB1
PB2
PZ1
PZ2
Forward stroke end
Reverse stroke end
Pre-excitation/servo on
Clear signal
Pulse train
Sign signal
Preparation ready signal
STF
STR
LX *9
CLR *9CLEAR
JOG *10
NP *9
*3
OFF
SF-V5RU
U
V
W
U
A
B
C
V
W
E
G1
G2
A
*4
MCCB
B
PA1
PA2
PB1
PB2
PZ1
PZ2
C
D
F
G
S
R
IM
FAN
Encoder
*1
CS(OH)
SD
Inverter
Positioning unit
MELSEQ-Q QD75P1
PC
2W1kΩ
12VDC
power supply(+) (-) *7
PULSE F
PULSE R
PULSE COM
CLEAR COM
RDY COM
READY
PC
RDY *11
SE
FLS
RLS
DOG
STOP
COM
24VDC power supply
Three-phase AC
power supply
Three-phase AC
power supply
Earth
(ground) Thermal
protectorExternal thermal
relay input *2
Torque limit command
(±10V)
ON
Differential
line driver
Complimentary
Terminating
resistor
PG
PG
SD
SD
CS(OH)
Resistor (2W1kΩ)
PC
Control circuit
terminal block
![FR-A700
INSTRUCTION MANUAL (BASIC)
FR-A720-0.4K to 90K
FR-A740-0.4K to 500K
INVERTER
IB(NA)-0600225ENG-C(0509)MEE Printed in Japan Specifications subject to change without notice.
FR-A700INVERTERINSTRUCTIONMANUAL(BASIC)
C
700HEAD OFFICE:MITSUBISHI DENKI BLDG MARUNOUCHI TOKYO 100-8310
1
2
3
4
5
6
CONTENTS
PRODUCT CHECKING AND PARTS IDENTIFICATION.............................. 1
INSTALLATION AND WIRING...................................................................... 2
2.1 Peripheral devices.....................................................................................................3
2.2 Method of removal and reinstallation of the front cover............................................5
2.3 Installation of the inverter and instructions................................................................7
2.4 Wiring.........................................................................................................................8
2.5 Power-off and magnetic contactor (MC) .................................................................35
2.6 Precautions for use of the inverter ..........................................................................36
2.7 When using the high-duty brake resistor (FR-ABR) ...............................................37
DRIVE THE MOTOR.................................................................................... 38
3.1 Step of operation.....................................................................................................38
3.2 Operation panel (FR-DU07)....................................................................................39
3.3 Before operation......................................................................................................48
3.4 Start/stop from the operation panel (PU operation mode)......................................73
3.5 Make a start and stop with terminals (external operation)......................................78
3.6 Parameter List .........................................................................................................85
TROUBLESHOOTING............................................................................... 129
4.1 Reset method of protective function......................................................................129
4.2 List of alarm display...............................................................................................130
4.3 Causes and corrective actions..............................................................................131
4.4 Correspondences between digital and actual characters.....................................143
4.5 Check and clear of the alarm history.....................................................................144
4.6 Check first when you have troubles......................................................................146
PRECAUTIONS FOR MAINTENANCE AND INSPECTION ..................... 149
5.1 Inspection item ......................................................................................................149
SPECIFICATIONS ..................................................................................... 157
6.1 Rating ....................................................................................................................157
6.2 Common specifications.........................................................................................161
6.3 Outline dimension drawings..................................................................................162
6.4 Heatsink protrusion attachment procedure...........................................................175
Thank you for choosing this Mitsubishi Inverter.
This Instruction Manual (basic) is intended for users who "just want to run the inverter".
If you are going to utilize functions and performance, refer to the Instruction Manual (applied) [IB-0600226ENG].
The Instruction Manual (applied) is separately available from where you purchased the inverter or your Mitsubishi
sales representative.
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